Our software is frequently upgraded and newer versions of the software sometimes function differently and have increased but different. Cahoj, sumit verma, bryce hutchinson, jie qi and kurt j. Recognize the importance of seismic interpretation in a. Seismic interpretation is the thoughtful procedure of separating these effects. Seismic data interpretation 210 pitfalls in seismic interpretation dhifizz water typical effect of gas saturation on pvelocity of rocks under shallow conditions. Pitfalls in interpretation of shallow seismic data springerlink.
Their work will be appreciated by all explorationists who have found that the earths crust and its seismic events are not well ordered. Pitfalls in seismic interpretation geoscienceworld books. Pitfalls in 3d seismic interpretation on workstations alistair r. Well data required for interpretation are wireline logs gamma ray logs, resistivity logs, porosity log, sonic logs, density logs and neutron logs or equivalent rock property model, check shot data. Print course page pdf email course page discipline. Seismic interpretation an overview sciencedirect topics. Pitfalls in the structural interpretation of seismic data introduction to special section.
Methodologies for correct interpretation of seismic sections and the techniques applied in the architecture details. Many pitfalls in seismic interpretation are concealed beneath seemingly straightforward reflections. Be able to identify interpretation problems and pitfalls. Direct interpretation of seismic sections in complex areas may result in serious errors due to interpretation pitfalls i. The course is designed for geophysicists working on seismic interpretation of complex structures, who need to understand the seismic expression of structures in petroleum basins, and correctly apply structural models and techniques to seismic interpretation. The authors wisdom regarding pitfalls in interpretation is born of experience, not all of which was pleasant. Part 2 velocity analysis sourced acquisition footprint, authormarcus p. The student will be familiar with the operation of seismic interpretation software commonly used in the oil and gas industry petrel. Mar 11, 2011 pitfalls in 3d seismic interpretation todays geophysical workstations are splendid tools but they are only tools. This site is like a library, use search box in the widget to get ebook that you want. Geology 554 exploration geophysics ii pitfalls in seismic interpretation lab i acoustic model building and ray tracing simulating the buried focus event a note of caution. Application of seismic attributes for delineation of. Seismic sections are still presented in travel time and for. Using outcrop data and analog models to aid seismic interpretation in fold and thrust belts.
Interpretation american association of petroleum geologists. Yorston he that diggeth a pit shall fall into it ecclesiastes x, 8. Seismic attributes, especially coherence and curvature, often exacerbate the effect of. But amplitude is also affected by data collection, data processing, surface conditions, the geology of the overburden, and shallower reservoirs. Amplitude tells us about stratigraphic bodies, fluid content, and porosity zones. Highresolution seismicreflection profiles and interpretation pitfalls created by acoustic anomalies from holocene muds beneath south san francisco bay by m. Of all the categories of pitfalls in seismic interpretation, the most elementary but important is the one related to velocities. Amplitude is the key to all seismic interpretation objectives other than structure. Interpretation pitfalls to avoid in void interpretation from groundpenetrating radar imaging. Our software is frequently upgraded and newer versions of the software sometimes. Use features like bookmarks, note taking and highlighting while reading 3d seismic interpretation.
The skill remains the thoughtful geological interpretation of geophysical data. Seismic data interpretation seismic data interpretation. What it has in addition, however, that makes the book just that little bit more useful than others are the really practical tips. With the wells as starting points you have to identify and interpret. Finally, the chapter describes a suite of interpretation pitfalls that any interpreter of seismic data should be aware of before interpreting seismic images. Depth migration artifacts an artifact in a prestack depthmigrated image caused by an inaccurate velocity model was examined. We discuss examples of the pitfalls of the method, along with some procedures to help avoid them. In year 2001 olkiluoto was selected for the site of final disposal. Structural and stratigraphic interpretation methods and pitfalls using two and three.
The authors classify seismic pitfalls into three groups. Therefore it need a free signup process to obtain the book. This book begins with an introduction that is more philosophical than technical, followed by five chapters on fundamentals of reflection seismic titled seismic response, seismic attributes, velocity, migration, and resolution. Brown todays geophysical workstations are splendid tools but they are only tools. Interpretation includes papers directly related to the practice of interpretation of the earths. Problems that often occur include spatial aliasing of ground roll, interpreting. Enwenode onajite, in seismic data analysis techniques in hydrocarbon exploration, 2014. Pitfalls in interpretation of shallow seismic data. A seismic interpretation study should access the following data sets 2d or 3d seismic data cube. The geosogic phemomena which lead to each of these errors are presented and their origin is explained with the help of geologic models. Well data are gotten from rock samples and measurements at depth from a wellbore.
A case study of wells jy1 and tx1 in the southeastern sichuan basin and its neighboring areas, southwestern china. Highresolution shallow seismic methods are the most widely used geophysical methods in near surface characterization. King fahid university of petroleum and minerals, 1994. The participant learns to answer these and related questions by gaining an understanding of the seismic system, its limitations and pitfalls, and by interpreting 2d and 3d seismic examples of structural and stratigraphic features associated with actively producing hydrocarbon areas. Welcome,you are looking at books for reading, the an introduction to seismic interpretation, you will able to read or download in pdf or epub books and notice some of author may have lock the live reading for some of country. The seismic wavelet starts as the pulse of seismic energy, which, generated by the energy source, travels down through the earth, is reflected and travels back up to the surface receivers carrying the geological information with it. It is rare that the correctness or incorrectness of an interpretation can be ascertained, because the actual geology is rarely known in enough detail. Those fortunate enough to hear the unique and delightful verbal presentation of pitfalls in seismic interpretation will be gratified by this printed version of the same classic paper. Pdf first steps in seismic interpretation khaled magdy. Seismic interpretation mapping is a time intensive endeavor. An introduction to seismic interpretation download pdf.
Access study documents, get answers to your study questions, and connect with real tutors for goph 559. Geology 554 exploration geophysics ii pitfalls in seismic. The specific objectives of this course concern the understanding and application of the main tools required for buildingup fundamental skills in seismic interpretation. Advanced seismic interpretation is a course designed for graduate students. With the application of a few fundamental principles relating to fault growthinteraction and the understanding that interpretation should be an iterative process rather than a. Comparative analysis of shale reservoir characteristics in the wufenglongmaxi o 3 ws 1 l and niutitang 1 n formations. Know basic concepts and practices of seismic interpretation. Jun 09, 2015 seismic data interpretation 210 pitfalls in seismic interpretation dhifizz water typical effect of gas saturation on pvelocity of rocks under shallow conditions. They are present on unmigrated time seismic sections and can produce the following false effects. Pitfalls in the structural interpretation of seismic data william l. Currently construction of the underground research facility, onkalo, is going on at the olkiluoto site. Pitfalls in the structural interpretation of seismic data i n te rpr e tatio n f e bruary 2015 sb5 i n te rpr e tatio n f e bruary 2015 sb5 downloaded 015 to 1. Quantitative seismic interpretation download ebook pdf.
Pitfalls in nearsurface geophysical interpretation. However, in many cases interpreting the seismic images can be misleading. An acquisition footprint can obstruct not only classical seismic interpretation but it can also affect interpretation based on seismic attributes marfurt et al. To acquire skills in interpretation of 3d seismic data to enhance theoretical knowledge of seismic structural interpretation, stratigraphic interpretation, reservoir identification and evaluation, and horizon and formation attributes. Cahoj and sumit verma and bryce hutchinson and jie qi and kurt j. Seismic interpretation seismic attributes rock physics seismotectonics seismic stratigraphy geophysical prospect appraisal petroleum system modelling seismic dynamic reservoir characterization seismic reservoir monitoring seismic inversion evaluation of seismic data hydrocarbon exploration and production, limitations and pitfalls evaluation of. Pitfalls in 3d seismic interpretation todays geophysical workstations are splendid tools but they are only tools. Be able to interpret horizons and faults on seismic data. Seismic data interpretation and evaluation for hydrocarbon. Seismic 2d reflection processing and interpretation of shallow refraction data abstract posiva oy takes care of the final disposal of spent nuclear fuel in finland. Stratigraphic traps are generally subtler and difficult to recognize on seismic sections as opposed to structural traps. Pitfalls in 3d seismic interpretation on workstations.
Seismic interpretation training course petroskills si1. Pitfalls in shallow seismic reflection exploration services. Click download or read online button to get quantitative seismic interpretation book now. Base pleistocene 255,0,0 given see kurs\geo4240\data\surfaces. Seismic interpretation, whether for hydrocarbon exploration or geotechnical studies, is the determination of the geological significance of seismic data. Tucker and yorston are to be congratulated for having an extraordinary idea and for sharing it in detail with their fellow explorationists.
Clearly their wisdom is born of experience, not all of which. Selection of seismic attribute and their processing for analysis it is always a critical stage of research, because selection of seismic attributes is one of the main steps in recognizing stratigraphic events and to overcome pitfalls in interpretation. Reservoir impedance contrast and direct hydrocarbon indicators. In this article, we present three case studies where results from pwave seismic reflection, shwave seismic reflection, and multichannel analysis of surface wave masw surveys were incorrectly. Pitfalls in seismic interpretation society of exploration geophysicists monograph series, number 2. Unfortunately too many interpreters are expecting to find the solution to their problem in the workstation. Jura reservoir in the troll field interpret a series of reflectors in vertical sections a limited number of inlines and crosslines. In this article, we present three case studies where results from pwave seismic reflection, shwave seismic reflection, and multichannel analysis of surface wave masw surveys were. Well log and seismic data interpretation are a fundamental part in reservoir characterization. Seismic interpretations are often highly subjective and depend on the interpreters understanding of. Many pitfalls in seismic interpretation are concealed within seemingly straightforward reflections.
Practical seismic interpretation pdf free download. Cdp seismicreflection techniques, but there are occasional interpretation problems with the resulting data. Pitfalls in seismic interpretation tom wilson, department of geology and geography exercise ivvi will be due this wednesday. Abstract he that diggeth a pit shall fall into it ecclesiastes 10. Structural geology in seismic interpretation by shankar mitra, university of oklahoma. It is jointly published by the american association of petroleum geologists aapg and the society of exploration geophysicists seg.
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